Increasing human interference with natural systems causes us to re-think our perception of wildlife species and the economic choices society makes with regards to their management. Accordingly, we generalize existing 'bioeconomic' models by proposing an economically-based classification of...

Owing to the fundamental importance of food to human welfare and of climate to crop and livestock production, agriculture has been a focus of research on the impacts of climate change and variability. This research has been largely concerned with implications for the supply and cost of food and...

Ivory poachers threaten the half million remaining African elephants. In response, Kremer and Morcom (2000) offer a novel solution to reduce the risk of extinction -- a local government can stockpile ivory and threaten to dump it on the market if the elephant population falls too low lowering...